Oscillo Hero #2 + Serpent Night Dragon → Twin-headed Thunder Dragon

Oscillo Hero #2 + Mikazukinoyaiba → Twin-headed Thunder Dragon

Oscillo Hero #2 + Meteor Dragon → Twin-headed Thunder Dragon

Thousand Dragon + LaLa Li-oon → Twin-headed Thunder Dragon

Thousand Dragon + Kaminarikozou → Twin-headed Thunder Dragon

Thousand Dragon + Sanga of the Thunder → Twin-headed Thunder Dragon

Thousand Dragon + Thunder Dragon → Twin-headed Thunder Dragon

Thousand Dragon + Kaminari Attack → Twin-headed Thunder Dragon

Thousand Dragon + Tripwire Beast → Twin-headed Thunder Dragon

Thousand Dragon + Bolt Escargot → Twin-headed Thunder Dragon

Thousand Dragon + Bolt Penguin → Twin-headed Thunder Dragon

Thousand Dragon + The Immortal of Thunder → Twin-headed Thunder Dragon